CDL Combination Vehicles TestCoupling and UncouplingMedium
A driver is performing a pre-trip inspection and notices significant corrosion on the glad hands. What is the most immediate concern caused by corroded glad hands?
- ADamage to the electrical connections.
- BDifficulty in applying the trailer parking brakes.
- CIncreased air pressure in the brake lines.
- DReduced airflow and potential air leaks.
Show answer & explanationAnswer & explanation
Correct answer: D. Reduced airflow and potential air leaks.
Corrosion on glad hands can prevent a tight seal, leading to air leaks and reduced airflow, which directly impacts the proper functioning of the trailer's air brake system.
Why the other options are wrong
- A. Glad hands are for air lines, not electrical connections.
- B. While related to air system, the most immediate mechanical issue is the leak/airflow reduction, which then affects brake application.
- C. Corrosion would more likely lead to air loss, not increased pressure.
Glad Hand Corrosion Impact
Corrosion on glad hands can lead to improper sealing of air lines, resulting in air leaks and reduced airflow, compromising trailer brake system effectiveness.
- Affects air line integrity.
- Causes air leaks.
- Impairs brake system functionality.
Memory trick: Corroded glad hand, air escapes from your hand.